uboot: (firmwareOdroidC2/C4) don't invoke patch tool, use patches = [] instead

https://github.com/NixOS/nixpkgs/blob/master/pkgs/stdenv/generic/setup.sh#L948
this can do it nicely.

Signed-off-by: Anton Arapov <anton@deadbeef.mx>

pkgs/development/python-modules/ftputil/default.nix

@@ -0,0 +1,45 @@
+{ lib
+, stdenv
+, buildPythonPackage
+, fetchPypi
+, freezegun
+, pytestCheckHook
+, pythonOlder
+}:
+
+buildPythonPackage rec {
+  pname = "ftputil";
+  version = "5.0.4";
+  format = "setuptools";
+
+  disabled = pythonOlder "3.6";
+
+  src = fetchPypi {
+    inherit pname version;
+    hash = "sha256-aInbhkndINm21ApsXw+EzPNAp9rB4L/A8AJAkPwq+zM=";
+  };
+
+  checkInputs = [
+    freezegun
+    pytestCheckHook
+  ];
+
+  disabledTests = [
+    # Tests require network access
+    "test_public_servers"
+    "test_real_ftp"
+    "test_set_parser"
+    "test_upload"
+  ];
+
+  pythonImportsCheck = [
+    "ftputil"
+  ];
+
+  meta = with lib; {
+    description = "High-level FTP client library (virtual file system and more)";
+    homepage = "http://ftputil.sschwarzer.net/";
+    license = licenses.bsd2;
+    maintainers = with maintainers; [ ];
+  };
+}